Campbell (Martian crater)

Campbell Crater is an impact crater in the Eridania quadrangle of Mars, located at 54.7°S latitude and 194.6°W longitude. It is 129.0 km in diameter and was named after John W. Campbel and William Wallace Campbell, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).